scholarly journals Finite Element Analysis of Oil and Gas Field Development Completion Tool Based on ANSYS

2021 ◽  
Vol 252 ◽  
pp. 03020
Author(s):  
Yanli Liu ◽  
Daqi Fu ◽  
Gaofeng Zhang ◽  
Yanzheng Yang ◽  
Haijun Zhang ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Large Diameter ◽  
Small Diameter ◽  
Gas Field ◽  
Element Analysis ◽  
Field Development ◽  
Variable Diameter ◽  
Casing Damage ◽  
Oil And Gas Field ◽  
Suitable Structure

At persent, multi expandable patching can’t be operated below the patched period of casing damage wells, a varible diameter expandable cone has been designed, so expandable tools can be put into wells with small diameter and expanded with large diameter which can achieve the purpose of patching for casing damage wells for many times. The indoor prototype testing showed that the tools had a suitable structure, start-up pressure was 3–5MPa,complete closure pressure was 52MPa,maximum overall diameter increased from 188 mm to 220 mm, with the same size of conventional expandable cone, expandable rate was 17.02%.The research results showed that expandable force increases linearly with the increase of thrust, expandable tools could be put into wells with small diameter and expanded with large diameter with the help of variable diameter expandable cone, it should have a broad application prospect after rudcing the closure pressure.

Financing Requirements for the Oil and Gas Industry - North America

1988 ◽  
Vol 6 (4-5) ◽  
pp. 317-322
Author(s):  
A.F. Grove
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Field ◽  
Gas Industry ◽  
Field Development ◽  
Energy Company ◽  
Corporate Credit ◽  
Oil And Gas Field ◽  
Good Energy ◽  
Business Acumen

The characteristics of good energy company borrowers are strong management, integrity, diversification, flexibility, a sound financial basis and business acumen. Acceptable reasons for borrowing include requirements for working capital, plant expansion, modernisation, oil and gas field development and the manufacturing of oil tools and related products. Security for loans is based on the company's reserves, the duration of the debt and priority over other indebtedness. Most loans are evaluated on the grounds of general corporate credit, that is, the overall credit standing of the borrower.

scholarly journals Review on the Evaluation of Casing Damage Level in Oil and Gas Field

2019 ◽  
Vol 256 ◽  
pp. 02008
Author(s):  
Fangcheng Zhou ◽  
Tao Wang ◽  
Changqing Ma ◽  
Pengfei Lei ◽  
Xinyi Zhang ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Economic Benefits ◽  
Damage Classification ◽  
Gas Field ◽  
Damage Level ◽  
Damage Degree ◽  
Damage Repair ◽  
Casing Damage ◽  
Oil And Gas Field ◽  
The Cost

The casing damage is a common problem encountered in the oil and gas field, and the casing damage will cause huge losses to the economic benefits of the oil and gas field. Grading the damage degree of the casing damage well can provide theoretical support for the oilfield workover operation and save the cost of workover. The casing damage classification has a strong guiding significance for the economic evaluation of the casing damage repair and the development of appropriate workover technology. After a review research on domestic and foreigner papers on the study of casing damage classification, it can be found that there is no mature theory and method for casing damage classification. After analyzing the entire workover process, the concept of the damage repair evaluation expert system is proposed to complete the entire workover process, evaluate the cost, and help the oil and gas field to obtain the best benefits.

TUBINGLESS COMPLETIONS IN THE SURAT BASIN

1976 ◽  
Vol 16 (1) ◽  
pp. 107
Author(s):  
M. A. Delbaere
Keyword(s):  
Oil And Gas ◽  
Small Diameter ◽  
Development Projects ◽  
Well Bore ◽  
Gas Wells ◽  
Oil And Gas Development ◽  
Gas Field ◽  
Field Development ◽  
Reservoir Stimulation ◽  
Well Completion

Oilfield operators have always looked for ways of reducing the costs of oil and gas development projects and especially when investment costs were critical to project economics. Tubingless completions have evolved over the last 30 years in North America to fill the need for reduced investment costs particularly in the case of fields with either limited reserves or limited profitability.Tubingless completions basically utilise small diameter tubulars to function as both production casing and flowstring. The tubulars are cemented in the borehole, not to be removed or recovered until the field is depleted and/or the well abandoned. The technique is limited in application to those fields with no corrosion or wax or hydrate problems and with a limited requirement for reservoir stimulation and workovers. The greater the number of operations performed within the tubingless well bore the greater the risk of losing the well.The main benefits of tubingless completions are as follows:Reduction in development well completion costs.Marginally productive hydrocarbon zones can be completed and tested.Completion of individual gas zones of multi-pay wells within their own permanently segregated flowstrings at much lower capital and operating costs.The experience this far with Kincora gas field development wells indicates the tubingless completion method to be completely feasible for gas wells drilled in the Surat Basin and possibly in other areas of Australia.

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