Application and Cognition of Unconventional Horizontal Well Drilling Technology in Shengli Oilfield

Long Horizontal Section Well has been an important way to explore deficient oil/gas field. Relative drilling technology has developed rapidly in recent years in China. This article puts focus on the methodology of well plan, trajectory control and matched tools and application situation of drilling fluid and drilling equipment for long horizontal section well. Based on the analysis of drilling and completion technical difficulties, suitability of some well design methods such as catenary curve used to decline friction and torque have been discussed, and even more practical means proven in many designs have been recommended. After introducing the drilling capability of the long horizontal-section well, the article indicated some special characteristic of the horizontal section wells and difference from ERD wells. Consequently, some advice is given on the definition and development of the drilling technology of long horizontal section wells.

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Horizontal Well Penetration Rate Increasing Technology in Sulige Gas Field

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.733.17 ◽

2015 ◽

Vol 733 ◽

pp. 17-22

Author(s):

Yang Liu ◽

Zhuo Pu He ◽

Qi Ma ◽

Yu Hang Yu

Keyword(s):

Horizontal Well ◽

Economies Of Scale ◽

Reference Value ◽

Drilling Speed ◽

Underground Engineering ◽

Gas Field ◽

Horizontal Section ◽

Well Drilling ◽

Drilling Parameters ◽

Key Techniques

In order to improve the drilling speed, lower the costs of development and solve the challenge of economies of scale development in sulige gas field, the key techniques research on long horizontal section of horizontal well drilling speed are carried out. Through analyzing the well drilling and geological data in study area, and supplemented by the feedback of measured bottom hole parameters provided by underground engineering parameters measuring instrument, the key factors restricting the drilling speed are found out and finally developed a series of optimum fast drilling technologies of horizontal wells, including exploitation geology engineering technique, strengthen the control of wellbore trajectory, optimize the design of the drill bit and BHA and intensify the drilling parameters. These technologies have a high reference value to improve the ROP of horizontal well in sulige gas field.

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Performance Evaluation and Application of the Non-Clay Weak Gel Drilling Fluid for Daniudi Gas Field

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.781-784.2861 ◽

2013 ◽

Vol 781-784 ◽

pp. 2861-2864

Author(s):

Wan Long Huang ◽

Yi Shan Lou ◽

Xiao Yong Ma ◽

Hai Min Xu ◽

Qiang Wang

Keyword(s):

Rheological Property ◽

Solid Phase ◽

Drilling Fluid ◽

Drilling Process ◽

Fluid System ◽

Gas Field ◽

Horizontal Section ◽

Good Ability ◽

Weak Gel ◽

Reservoir Protection

Daniudi Gas Field reservoir has low degree of porosity and permeability, thus it is highly susceptible to the invasion of the solid phase of clay particles in the drilling fluid during the drilling process, in view of these problems, we introduce the non-clay weak gel drilling fluid system. Experiments of the drilling fluid system for rheological property, salt-resisting pollution, hot rolling rate of recovery, reservoir damage evaluation and drilling fluid treating chemical opimization have been taken. The experimental results show that the drilling fluid system has excellent temperature-resisting and salt-resisting character, good ability of suspending debris and strong inhibitory action, its rheological property can meet the needs of the long horizontal section of drilling engineering and the reservoir protection effect is excellent. In DP21 well horizontal section construction, each performance indicator of the drilling fluid can be controlled well and effectively solve the problems of cuttings carrying, borehole wall stability and reservoir protection, successfully completed the DP21 well drilling construction task.

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Research and Application of Recyclable Nitrogen Foam Horizontal Well Drilling Technology in the Daniudi Gas Field

Journal of Surfactants and Detergents ◽

10.1007/s11743-014-1601-6 ◽

2014 ◽

Vol 17 (5) ◽

pp. 995-1001 ◽

Cited By ~ 1

Author(s):

Ming Tang ◽

Shiming He ◽

Jiyou Xiong ◽

Fenghui Zheng

Keyword(s):

Horizontal Well ◽

Gas Field ◽

Well Drilling ◽

Nitrogen Foam ◽

Drilling Technology

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Feasibility of Particle Jet as a Drilling Medium for the Development of Deep Complicated Oil-Gas Reservoir

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.361-363.465 ◽

2011 ◽

Vol 361-363 ◽

pp. 465-468 ◽

Cited By ~ 1

Author(s):

Yu Kun Du ◽

Rui He Wang ◽

Hong Jian Ni

Keyword(s):

New Technologies ◽

Drilling Rate ◽

Gas Reservoir ◽

Gas Field ◽

Pressure System ◽

Well Drilling ◽

Technical Problems ◽

Deep Well ◽

Oil Gas ◽

Exploration And Development

The technical problems existing in deep well drilling are becoming more and more predominant during the exploration and development of oil-gas field. The poor formation drillability, low drilling rate and complicated pressure system cause the underground accidents frequent, extend well construction cycle, and make the cost of the project much higher. Therefore, it is urgent to develop new technologies to improve the efficiency of the exploration and development in deep unconventional oil-gas reservoir. The particle jet technology is a new energy-saving way which has a broad application prospect. It can take the way of sucking in particles in annulus space to cycle use the particles, and promote the drilling rate. The feasibility of particle jet as a drilling medium is verified by the theoretical and experimental study, which provides the basis for the design of particle jet tool.

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Analysis of the deep drilling technology in unstable formations at the Semyrenky gas condensate field

Proceedings of OilGasScientificResearchProjects Institute SOCAR ◽

10.5510/ogp2021si200573 ◽

2021 ◽

pp. 52-64

Author(s):

A. K. Raptanov ◽

◽

V. V. Ruzhenskyi ◽

B. I. Kostiv ◽

M. A. Myslyuk ◽

...

Keyword(s):

High Speed ◽

Gas Condensate ◽

Drilling Mud ◽

Deep Drilling ◽

Borehole Stability ◽

Well Drilling ◽

Rock Stability ◽

Well Design ◽

Drilling Technology ◽

Drilling Conditions

The paper presents a general overview of deep drilling in unstable formations at the Semyrenky gas condensate field of the Dnipro-Donetsk Trough, including well design, bottom hole assemblies (BHA), drilling conditions, and drilling muds. Problems encountered during drilling for production casing of Wells 72- and 75-Semyrenky using high-speed drilling methods are analyzed. The relationships between the rate of penetration and disturbed rock stability, volume excess and depth, as well as consistent empirical patterns in changes in mud properties and depth are established. With these technical and economic performance indicators for well drilling are given, elements of a borehole stability management strategy were defined, the principles of mud selection for drilling through problem zones are validated. The paper discusses the requirements to a mud hydraulics program to reduce the erosion of borehole walls, specific borehole preparation techniques, such as reaming and gauging, for drilling in problem zones, and alternative options to ensure borehole stability. Keywords: borehole stability; statistical models; hole gauging; hole geometry; drilling mud; BHA.

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Application of Cluster Well Drilling Technology in Sulige Gas Field

10.2118/156183-ms ◽

2012 ◽

Cited By ~ 1

Author(s):

Zongqiang Zhou ◽

Longlian Cui ◽

Jianmin Li ◽

Fucheng Zhang ◽

Xuesheng Wu ◽

...

Keyword(s):

Gas Field ◽

Well Drilling ◽

Drilling Technology

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The history of UGS Strachocina investment as an example of success achieved by cooperation between a western company and Polish oil and gas companies

Nafta-Gaz ◽

10.18668/ng.2021.11.06 ◽

2021 ◽

Vol 77 (11) ◽

pp. 760-764

Author(s):

Bogdan Filar ◽

◽

Mariusz Miziołek ◽

Mieczysław Kawecki ◽

Marek Piaskowy ◽

...

Keyword(s):

Oil And Gas ◽

Drilling Fluid ◽

Horizontal Wells ◽

Gas Storage ◽

Natural Fracture ◽

Horizontal Section ◽

Well Completion ◽

Working Volume ◽

Drilling Technology ◽

Fluid Losses

In 2006 Oil and Gas Institute, Underground Gas Storage Department was given the task of designing the UGS Strachocina working volume, production and injection rates enlargement. Gas storage Strachocina is located in the south eastern part of Poland, near Sanok. The UGS Department ran some analysis before that date, which gave us the answer that the old vertical well technology would not be enough to achieve investment success. We knew that we needed to use horizontal well technology in which we had no experience at all. At that time there were only a few horizontal wells drilled in Poland. We decided to start cooperation with the company Baker Hughes, and asked them to help us to design the drilling technology and well completions. We knew that we needed to drill 8 horizontal wells in difficult reservoir conditions. Based on Baker Hughes’ recommendations, the EXALO Polish drilling company’s experience and the Institute’s knowledge of storage reservoir geology, the trajectories of 8 new wells were designed. Working with Baker Hughes, we designed the well completion based on expandable filters, the second time this type of completion technology had been used in the world at that time. During drilling, we were prepared for drilling fluid losses because of the extensive Strachocina reservoir’s natural fracture system. The investment was in doubt during the drilling of the first two horizontal wells because of huge drilling fluid losses and the inability of drilling the horizontal section length as designed. We lost 4000 cubic metres of drilling fluid in a one single well. During the drilling of the 2nd well, we asked Baker Hughes to help us to improve the drilling technology. Our partners from Baker Hughes prepared the solution in 3 weeks, and so we were able to use this new technology on the 3rd well drilled. It turned out that we could drill a longer horizontal section with less drilling fluid loss. The paper will show the idea of the project, the team building process, the project problems solved by the team, decisions made during the UGS Strachocina investment and the results. It will show how combining “western” technology and experience with “eastern” knowledge created a success story for all partners.

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Analysis of factors affecting drilling friction and investigation of the friction reduction tool in horizontal wells in Sichuan

Advances in Mechanical Engineering ◽

10.1177/1687814019862963 ◽

2019 ◽

Vol 11 (7) ◽

pp. 168781401986296 ◽

Cited By ~ 3

Author(s):

Yong Chen ◽

Chuan He ◽

Xu Zhou ◽

Hao Yu

Keyword(s):

Horizontal Well ◽

Drilling Fluid ◽

Drill Pipe ◽

Drill String ◽

Friction Reduction ◽

Fluid Density ◽

Horizontal Section ◽

Well Drilling ◽

Factors Affecting ◽

The Mathematical Model

Based on field data and the related theories, the effects of drill string length, rotation speed, trajectory, and drilling fluid density on the friction during horizontal well drilling are analyzed in Sichuan. With increasing the length of drill string in the horizontal section, the friction grows. The drill pipe rotates faster and the torque decreases. Large undulation of borehole deviation and the “W” shape of the horizontal section lead to excessive friction. A higher fluid density causes higher torque and drag. Moreover, a friction reduction tool is designed to reduce friction, decrease the wear between the casing and the drill pipe joint, and prevent the differential pressure sticking, which improves the rate of penetration, and the specially designed spiral diversion channels improve the efficiency of borehole cleaning. The field experimental results have shown that the accumulated operational time of the friction reduction tool is more than 130 h and its fatigue life reaches up to 3 × 105 cycles. A plan of improving the tool structure is proposed to reduce the mud balling after the experiment. Finally, the mathematical model of calculating the spacing of the friction reduction tools is established, which provides technical support for investigating the friction in horizontal well drilling.

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