Calculation and comparative analysis of extension length for shallow extended reach horizontal well under multi-limited conditions

2017 ◽  
pp. 1703-1708
Author(s):  
Qimin Liang ◽  
Lingdong Li ◽  
Xinyun Liu ◽  
Yi Zhang ◽  
Jiali Zang
Keyword(s):  
Comparative Analysis ◽  
Horizontal Well ◽  
Extension Length

Evaluate Sensitivity and Feasibility of Influencing Factors to Increase the Extreme Hydraulic Extension Length of Horizontal Well

2017 ◽  
Author(s):  
Bo Zhang ◽  
Zhichuan Guan ◽  
Nu Lu ◽  
A. R. Hasan ◽  
Chuanbin Xu ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Horizontal Well ◽  
Extension Length

scholarly journals Modeling research on the extreme hydraulic extension length of horizontal well: impact of formation properties, drilling bit and cutting parameters

2021 ◽  
Vol 11 (3) ◽  
pp. 1211-1222
Author(s):  
Nu Lu ◽  
Bo Zhang ◽  
Tao Wang ◽  
Qianming Fu
Keyword(s):  
Horizontal Well ◽  
Formation Pressure ◽  
Fracture Pressure ◽  
Bed Height ◽  
Pump Rate ◽  
Drilling String ◽  
Pump Pressure ◽  
Cutting Bed ◽  
Extension Length ◽  
Drilling Bit

AbstractHorizontal well can increase well productivity and improve the economic benefit, which significantly promotes the development of shale gas, tight oil and heavy oil. Moreover, it plays an important role in the development of natural gas hydrate. Horizontal extension ability is one of the key indexes of horizontal well, but it is always impacted by formation properties and well structure. Therefore, a model is established to analyze the impact of formation properties and well structure as comprehensive as possible, which considers not only traditional influencing factors, like formation pressure and drilling bit parameters, but also other key factors, including cutting particle size, wellbore diameter and cross section. Based on the analysis, some advises are proposed for field application. The analysis indicates that horizontal well has stronger extension ability in the formation with low formation pressure and high fracture pressure, but it is still limited by pump pressure. Under-balanced drilling can strength the extension ability in high formation pressure by reducing drilling mud density. The natural fractures in formation should be noted when drilling long horizontal well. The extension length increases and then decreases with the cutting particle size, so cutting particle has optimal size for the horizontal extension length, which can be adjusted by the rate of penetration and rotation speed. The extension length increases first and then decreases with the gap between drilling string and hole. Considering the demand of rock breaking and cutting sweeping around drilling bit, it is not recommended to adjust the drilling bit parameters. Both the cutting bed height and drilling string eccentricity have impact on horizontal extension length by changing minimum cutting-carry pump rate and annular pressure drop. Under different combinations of above two parameters, minimum cutting-carry pump rate and horizontal extension length are determined by different factors and can be divided into three parts, including acceptable cutting bed height, cutting lifting efficiency, pump pressure and total circulation pressure loss and well bottom pressure and formation fracture pressure. The findings of this study can help for better understanding of horizontal well hydraulic extension length and optimization method.

scholarly journals Análisis comparativo técnico - económico de producción de crudos pesados en pozos horizontales y direccionales, arena “m-1” formación napo, bloque 16, oriente ecuatoriano

2016 ◽  
Vol 3 (3) ◽  
pp. 165-171
Author(s):  
Carlos Portilla ◽  
Alamir Alvarez ◽  
Romel Erazo
Keyword(s):  
Comparative Analysis ◽  
Horizontal Well ◽  
Technical Information ◽  
Oil Production ◽  
Oil Field ◽  
Well Drilling ◽  
Horizontal Drilling ◽  
Technical Evaluation ◽  
Economic Comparison ◽  
Made In

Los tipos de perforación ejecutados en el campo Amo son: perforación vertical, direccional y horizontal. El objetivo de este trabajo es analizar qué tipo de perforación conviene hacer en el campo Amo. La selección del pozo a perforar, es mediante un análisis comparativo técnico-económico entre un pozo horizontal y un pozo direccional. Para este análisis es necesario disponer de la información técnica de los pozos seleccionados que se obtuvo a través de la operadora del Bloque 16. La formación Napo (arenisca M-1) son areniscas delgadas permeables. La completación de cada pozo está diseñada para extraer grandes cantidades de fluidos; la parte más elemental de este trabajo se basa en la comparación técnico-económica de los dos pozos seleccionados. En la evaluación técnica, se puede decir que el pozo horizontal Tigre 1, tiene una mayor producción de petróleo y agua, lo cual tiene un mejor rendimiento de ganancias. Finalmente, la perforación de los pozos, horizontal como direccional, ayuda a disminuir considerablemente la deforestación. Se concluye que la perforación de un pozo horizontal, comparado con un direccional, es más conveniente tanto técnica como económicamente, para los intereses de la empresa operadora de un campo.  Abstract The types of drilling well executed in the Amo oilfield are vertical, directional and horizontal. The main objective of this paper is to analyze the best drilling way should be made in the Amo oilfield. The drilling well selection is by a techno-economical comparative analysis of a horizontal well and a directional well. For to make this analysis was necessary the use technical information of the selected wells, the data was obtained through the operator-company of Block 16 (Amo Oil field). The Napo (sandstone M-1) sandstones are thin and permeable. The completion of each well is designed to extract large quantities of fluids. The most important part of this work is based on technical and economic comparison of the two selected wells. In the technical evaluation, we can say that the Tiger (horizontal well) has increased production of oil and water, which performs better profit.  The horizontal and directional well drilling would help to significantly reduce deforestation on the oilfield and increase the oil production. And, the horizontal drilling is more convenient than directional well according techno-economical aspects.

Prediction and Analysis of Extreme Extension Length of Horizontal Well Based on Hole Cleaning Degree

2017 ◽  
Vol 43 (5) ◽  
pp. 2537-2546 ◽  
Author(s):  
Bo Zhang ◽  
Zhichuan Guan ◽  
A. Rashid Hasan ◽  
Qing Wang ◽  
Yuqiang Xu ◽  
...  
Keyword(s):  
Horizontal Well ◽  
Hole Cleaning ◽  
Extreme Extension ◽  
Extension Length

1207: Failed Pyeloplasty in Children: Comparative Analysis of Retrograde Endopyelotomy VS. Re-do Pyeloplasty

2007 ◽  
Vol 177 (4S) ◽  
pp. 398-398
Author(s):  
Luis H. Braga ◽  
Joao L. Pippi Salle ◽  
Sumit Dave ◽  
Sean Skeldon ◽  
Armando J. Lorenzo ◽  
...  
Keyword(s):  
Comparative Analysis
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