Study and Application of Hydraulic Jet Radial Drilling in Carbonate Reservoirs
International Journal of Oil, Gas and Coal Engineering
Volume 6, Issue 5, September 2018, Pages: 96-101
Received: Jul. 31, 2018;
Accepted: Aug. 14, 2018;
Published: Sep. 12, 2018
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Yan Jun, Center of Well Construction Engineering, Research Institute of Petroleum Exploration & Development CNPC, Beijing, China
Cui Mingyue, Center of Well Construction Engineering, Research Institute of Petroleum Exploration & Development CNPC, Beijing, China
He Anle, Center of Well Construction Engineering, Research Institute of Petroleum Exploration & Development CNPC, Beijing, China
Jiang Weidong, Center of Well Construction Engineering, Research Institute of Petroleum Exploration & Development CNPC, Beijing, China
Liang Chong, Center of Well Construction Engineering, Research Institute of Petroleum Exploration & Development CNPC, Beijing, China
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The hydraulic jet radial drilling technology is a low-cost production and completion technology for effectively developing low-permeability marginal reservoirs, thin-bed reservoirs with edge and bottom water, and depleted oil and gas fields. It has been successfully and widely applied in sandstone, coalbed methane, and heavy oil reservoirs. In order to explore its application in carbonate reservoirs, specially economically and efficiently develop low-permeability thin-layer carbonate reservoirs, the pilot of hydraulic jet radial drilling technology in the carbonate reservoir application was successfully completed through the research on the principle, advantage, existing problems and application condition of radial jet drilling, economic productivity was got, and cost-effective development was achieved, this pilot provided a method for the development of low permeability thin layer carbonate reservoir. This research shows that the hydraulic jet radial drilling technology has its unique technical advantages, which can enable some reservoirs to increase production or injection, but it is not suitable for every well, it has certain applicable conditions, such as the depth, thickness, and temperature of the target zone, and the conditions of well inclination, casing and wellbore have certain requirements too. The hydraulic jet radial drilling technology can achieve the expected target based on the zone and well selection, in selecting layers, as far as possible, homogeneous oil layers with good reservoir physical properties should be selected; the key of its successful implementation is the depth and azimuth control, wellbore diameter and operation safety control. The application of hydraulic jet radial drilling in carbonate reservoirs will make the spray hose wear large due to its high Young's modulus the high hardness, which affects the treatment footage; the use of acid in jet drilling can increase the radial drilling footage, but on the other hand can also produce impurities affecting the operation. The working fluid for jetting must meet the requirements of no solid phase.
Hydraulic Jet, Radial Drilling, Carbonate Reservoir, Technological Advantages, Technological Process
To cite this article
Study and Application of Hydraulic Jet Radial Drilling in Carbonate Reservoirs, International Journal of Oil, Gas and Coal Engineering.
Vol. 6, No. 5,
2018, pp. 96-101.
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
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