Results 211 to 220 of about 89,974 (258)

An Innovative Material for Severe Lost Circulation Control in Depleted Formations

Middle East Drilling Technology Conference & Exhibition, 2009
Abstract High degree of depletion and overbalanced drilling have caused ideal conditions for fracturing and lost circulation. Thief zone introduces severe lost circulation and well control problems, often resulting into loss of the interval or the entire well.
K. M. Suyan, Vinod Sharma, V. K. Jain
openaire   +1 more source

Calcium phosphate cements for lost circulation control in geothermal drilling

Geothermics, 1995
Abstract Calcium phosphate cements were investigated as potential lost circulation control materials for geothermal wells. The calcium phosphate cements were produced by reacting calcium aluminate (high alumina) cement with sodium phosphate compounds.
Marita L. Allan, Lawrence E. Kukacka
openaire   +1 more source

Rheology of a New Gel Used for Severe Lost Circulation Control

Proceedings of International Oil and Gas Conference and Exhibition in China, 2010
Abstract Lost circulation is a common problem in drilling project, especially the severe loss which consumes much material and costs much time, sometimes induced wellbore collapse, drill pipe sticking, overflow, blowout and well abandon at last.
Xunyong Nie, Pingya Luo, Pingquan Wang, Xinmin Zhang, Li yang   +4 more
openaire   +1 more source

Dynamically Evaluating the Performance of Naturally Occurring Additives to Control Lost Circulation: On the Effect of Lost Circulation Material Type, Particle-Size Distribution, and Fracture Width

SPE Journal, 2022
Summary Lost circulation is one of the most challenging problems during drilling of oil and gas wells. This issue leads to significant loss of drilling fluid, increase of nonproductive time as well as dictating additional costs to drilling companies.
Siavash Ashoori, Mahdi Bahari Moghadam, Rasoul Nazemi, Vahid Nooripoor, Mahmud Ahmadabadi   +4 more
openaire   +1 more source

Two Component Lost Circulation Material for Controlling Seepage to Moderate Losses

SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, 2017
Abstract A two-component lost circulation material (LCM) system is developed to mitigate seepage to moderate type loss of circulation using materials and polymers having different physical and chemical properties. The first component or component I is a slurry containing a carrier fluid such as water, a particulate or filler material ...
Jothibasu Ramasamy, Md Amanullah
openaire   +1 more source

Aphron-Base Drilling Fluid: Evolving Technologies for Lost Circulation Control

Proceedings of SPE Annual Technical Conference and Exhibition, 2001
Abstract Drilling depleted reservoirs is fraught with a host of technical and economic problems that often make it unprofitable to further develop some mature fields. Most of the problems center around uncontrollable losses in the large fractures that commonly characterize these reservoirs. Frequently, less expensive drilling fluids will
C. D. Ivan, J. L. Quintana, L. D. Blake
openaire   +1 more source

Experience of Using the Foamed Cement Technology for Difficult Lost Circulation Control

Abu Dhabi International Petroleum Exhibition and Conference, 2014
Abstract Experience of using the foamed cement technology for difficult lost circulation control at Perm Krai fields (Russia) was summarized. Properties of foamed cement material and results of its applications were shown. Effectiveness of the foamed cement technology for difficult lost circulation control was estimated.
A. Bikmukhametov, S. Iliasov, G. Okromelidze, O. Garshina, O. Chugaeva   +4 more
openaire   +1 more source

Bentonite-based ammonium polyphosphate cementitious lost-circulation control materials

Journal of Materials Science, 1986
Bentonite-based cementitious materials have been formulated and evaluated in terms of their properties for use as cementitious lost-circulation control materials in geothermal wells at temperatures up to 300° C. The formulation which appears to have the highest potential as a new cementitious lost-circulation control material is composed of bentonite ...
T. Sugama, L. E. Kukacka, J. B. Warren, B. G. Galen   +3 more
openaire   +1 more source

Normal Stress Rheology of Drilling Fluids and Potential in Lost Circulation Control

North Africa Technical Conference and Exhibition, 2013
Abstract Investigating lost circulation in DEA 13 JIP has shown that it is difficult to arrest losses while drilling with non-aqueous drilling fluids (NAF) as compared to aqueous drilling fluids (AF). In an earlier work (Kulkarni 2012), a novel method was discussed to characterize the plugging (of LCM particles and Fibers) performance of
Sandeep D. Kulkarni, Sharath Savari, Shadaab Maghrabi, Dale E. Jamison, Arunesh Kumar   +4 more
openaire   +1 more source

Research and Application of Thermally Activated Gel for Control of Lost Circulations

SPE Journal
Summary Thermally activated gel (TAG) for control of lost circulations was evaluated, which is based on acrylamide (AM) and N-vinylpyrrolidone (NVP) copolymers crosslinked by polyethyleneimine (PEI). Viscoelasticity, pumpable time, breakthrough pressures, thermal tolerance, and fluid compatibility were tested in this paper, and then ...
Zhiqiang Zhao, Tie Geng, Huaike Li, Wei Zhang, Jinjun Hu, Jiansheng Luo   +5 more
openaire   +1 more source