... recommended in Coiled Tubing Drilling (CTD) applications using the existing CT e-line pipe to achieve a better time performance for sidetracking a well since using the CTD technique is mainly based on economical evaluation. Several considerations need to be taken into account while designing the job...

... Abstract A novel well concept to unlock reserves from mature gas fields in Northern Germany has been developed. This concept combines cemented completions with through-tubing coiled-tubing drilling to enable significant cost reductions using ultra slim hole drilling in sour gas bearing, Upper...

... performance comparison between a positive displacement motor (PDM) and a turbodrill bottomhole assembly (BHA) equipped with real-time logging tools. This would be a world-first drilling run for this size of turbodrill as well as the first turbodrill run on coiled tubing (CT) using this real-time data feedback...

... Abstract As part of a coiled tubing drilling re-entry campaign for a client in the Middle East, a well required a through-tubing casing exit system to enable the subsequent drilling assembly access to drill a new lateral. On completion of the drilling phase, a production well test determined...

... This is the first of its kind Coiled Tubing - Underbalanced Drilling project undertaken in Hassi Messaoud field. The candidates wells are from a pool of vertical shut in wells drilled in the western area of the field and have seized to produce with varying completion string and production casing...

... Abstract Dynamic Annular Pressure Control (DAPC) is a new technology that allows accurate control of downhole pressure in a well. DAPC was used in conjunction with Coiled Tubing Drilling (CTD) on the Gannet GA-03 well between February and April 2005. This report describes the selection, design...

... Abstract The following paper presents a new high temperature Coiled Tubing Drilling (CTD) Bottom Hole Assembly (BHA) with its technical improvements and adjustments needed, to operate beyond previous temperature limitations and in more challenging formations. It summarizes the field-test...

... Abstract Currently the options for directional drilling of larger hole sizes, such as those greater than 6", with Coiled Tubing Drilling (CTD) are limited. This paper introduces a new system that utilizes a 5.0" BHA with a Rotating Orienter. The BHA is the first drilling tool to utilize a solid...

...% of the case histories published in literature are from land applications, with Alaska, USA, being the leader, followed by the Middle East, Far East and Asia, and Latin America The application of coiled tubing drilling (CTD) can be divided into two main categories: grass roots and through-tubing reentry...

.... cement milling assembly atypical approach pilot hole assembly whipstock upstream oil & gas unconventional drilling technique international association of drilling contractors payzone drilling operation completion plug peninsular malaysia coiled tubing iadc spe 156177 case study...

... Abstract Coiled tubing is used for a range of oil and gas well operations. It is mainly used in drilling, work over, pumping, logging etc. This technology is becoming an economic substitute to conventional drilling as it is highly cost and time saving. Drilling with Coiled tubing allows...

... plateau of drilling optimization. Any additional step changes in this performance would require a paradigm shift in drilling. Coiled Tubing Directional Drilling is such a change in the drilling paradigm. Coiled Tubing Directional Drilling (CTDD) General Description of CTDD Coiled Tubing (CT) has...

... From 2002 to 2004 Coiled Tubing Drilling (CTD) activity for horizontal drilling in both underbalanced and overbalanced mode has increased considerably (approximately from about 3.000 m to 70.000 m per year 1 ). As CTD became a reliable and cost efficient drilling technology, more operators began...

... Abstract Coiled Tubing (CT) Drilling is becoming more popular as the drilling technology is advancing. Most of the CT applications are associated with highly inclined or horizontal well drilling. In such wells, cuttings transport is still remaining as a major challenge. In this study, a layered...

... Abstract Historically, well drilling operations have been based exclusively on steel pipe. Recently a well construction system that incorporates composite coiled-tubing technology has been introduced. This paper examines this system and its implications for the future, with specific emphasis...

... Abstract The paper describes the ongoing development of an electrically powered bottom hole assembly for use in coiled tubing drilling (CTD) applications. Electric coiled tubing drilling (E-CTD) offers many distinct advantages over conventional CTD which are considered in more depth within...

... Abstract This paper describes a joint industry project to develop an electrically powered bottom hole assembly for use in coiled tubing drilling (CTD) applications. Phase I of the project, recently completed in Aberdeen, produced a highly successful prototype assembly that recorded over 190...

... Abstract Coiled Tubing Drilling (CTD) is becoming more widely used as the technology develops. CTD has wide applications in reentry and multiple branch drilling. Underbalanced drilling with coiled tubing is used as a means to increase productivity by reducing formation damage and to increase...

... through coiled tubing (CT) underbalanced drilling (UBD) project in ADNOC Onshore. CT pressure control equipment was rigged up on top of production trees with wells already completed and cemented. A CT tower was used to accommodate the drilling bottomhole assembly (BHA) and eliminate risks related to its...