Game Changer in Dealing With Hard Scale Using a Slickline Torque Action Debris Breaker

Scale deposition is a major concern in Gulf of Suez Fields, variations in water composition and operating conditions resulted in the deposition of full spectrum of scale depositions in different fields. The common practice in GOS is to prevent scale deposition by periodical scale inhibition treatment. However the field experience showed variation in efficiency of inhibition under different operating conditions which results in some cases in scale deposition. In this case we are obliged to react and do intervention to clean out these wells either with chemical dissolution or coiled tubing clean out which is sometimes becomes costly and stand clueless in front of hard scale. Typically, in offshore operating fields, rig-less solutions is the optimum. A simple, innovative, and cost effective Torque action debris breaker tool is a new rig-less solution deployed on slick-line unit. The tool can be run at different sizes to allow for optimum scale removal. Activation is achieved via downward jarring action. The TADB tool applies a new operating concept different from milling. The tool consists of a sharp knife with a broach body. The operating mechanism uses the jarring down action in order to apply jackhammer force on the scale accumulation, which allows decreasing the bond between different layers of scale and between the scale and tubing. Another advantage is having the knife rotating after each jar action, which allows this force to be applied on different positions of scale accumulation adding more efficiency. The tool was first deployed in Egypt in one of the challenging oil wells offshore gulf of suez, which has a historical scale deposition issues "mainly hard deposition of zinc & lead sulfides". several trials were performed to clean out the well historically using coiled tubing operations using barge assist, it took 2 months of operation to achieve partial success & the well was worked over later. The Torque Action debris breaker was tried against the same scale type and found successful. allowing the well to be drifted with 2.7" compared with 2.25" before the job. The operation cost is by no means comparable to the previous cost of coiled tubing operations. Following this wells three other wells were intervened using the same tool and showed much better progress of scale clean out in comparison with other slick-line tools & historical coiled tubing performance in these wells. The implementation of this technology has generally optimized operating cost compared to lengthy and costly CT/WO operation minimizing footprint, equipment, manpower, job duration, and provide a more environmentally friendly solution.

The diphoton $$q_T$$ spectrum at N$$^3$$LL$$^\prime $$ + NNLO

We present a $$q_T$$ q T -resummed calculation of diphoton production at order N$$^3$$ 3 LL$$^\prime $$ ′ + NNLO. To reach the primed level of accuracy we have implemented the recently published three-loop $${\mathcal {O}}(\alpha _s^3)$$ O ( α s 3 ) virtual corrections in the $$q\bar{q}$$ q q ¯ channel and the three-loop transverse momentum dependent beam functions and combined them with the existing infrastructure of , a code performing resummation at order N$${}^3$$ 3 LL. While the primed predictions are parametrically not more accurate, one typically observes from lower orders and other processes that they are the dominant effect of the next order. We include in both the $$q\bar{q}$$ q q ¯ and loop-induced gg channel the hard contributions consistently together at order $$\alpha _s^3$$ α s 3 and find that the resummed $$q\bar{q}$$ q q ¯ channel without matching stabilizes indeed. Due to large matching corrections and large contributions and uncertainties from the gg channel, the overall improvements are small though. We furthermore study the effect of hybrid-cone photon isolation and hard-scale choice on our fully matched results to describe the ATLAS $$\text {8}$$ 8 TeV data and find that the hybrid-cone isolation worsens agreement at small $$q_T$$ q T compared to smooth-cone isolation.

P PENANGGULANGAN SCALE CaCO_3 PADA SUMUR PF1 LAPANGAN 26 DI PT PERTAMINA EP ASSET 2 FIELD LIMAU

Scale merupakan suatu endapan yang mengkristal dari air formasi di suatu bidang khusunya flowline yang dipengaruhi oleh beberapa faktor seperti suhu, pH, tekanan, dan kandung ion senyawa kimia yang ada di air formasi tersebut. Jenis- jenis scale ialah hard scale, soft scale dan misc. Scale dapat mengganggu laju alir dari suatu sumur dikarenakan scale dapat membuat pengecilan inside diameter (ID) dari pipa produksi. Pada sumur PF1 Lapangan 26 yang ada di PT Pertamina EP Asset 2 Field Limau, scale terbentuk di-flowline, karena adanya peningkatan tekanan pada flowline. Pada sumur ini scale yang terbentuk berjenis CaC. Hal ini dibuktikan dengan kandungan ion senyawa kimia yang ada di air formasinya dan telah dilakukannya perhitungan mengunakan metode Stiff Davis dengan SI 1.17. Scale ini hanya akan larut pada asam, sesuai dengan karakteristik scale tersebut. Pada situasi ini asam yang digunakan untuk proses penanggulangan berjenis asam HCl. Setelah proses penanggulangan scale CaC dilakukan, hasil evaluasi terlihat pada Productivity index (PI) dan Trend produksi di Sumur PF1 Lapangan 26 terjadi peningkatan. Sehingga proses penanggulangan scale CaC tersebut dikatakan berhasil.

Hard hadronic diffraction is not hard

Hadronic diffractive processes characterized by a hard scale (hard diffraction) contain a nontrivial interplay of hard and soft, nonperturbative interactions, which breaks down factorization of short and long distances. On the contrary to the expectations based on the factorization hypothesis, assuming that hard diffraction is a higher twist, these processes should be classified as a leading twist. We overview various implications of this important observation for diffractive radiation of Abelian (Drell–Yan, gauge bosons, Higgs boson) and non-Abelian (heavy flavors) particles, as well as direct coalescence into the Higgs boson of the nonperturbative intrinsic heavy flavor component of the hadronic wave function.