DRILLING TECHNOLOGIES
In 2023, KPO continued building on the strong foundation laid in the past years, working on minimising the impact of drilling and well services operations on the environment. As previously, we continued our journey towards zero emission and applied measures listed below to reduce greenhouse gas (GHG) emissions, and consumption of water and resources:
- High-efficient environmentally friendly burners to eliminate where possible / reduce the need for flaring and the need for disposal of contaminated fluids.
- Continued drilling campaign, delivering wells that will allow increased oil production offsetting existing high gas producing (GOR) wells.
- High Rate Well Test setup with High Pressure Separators combined with multiphase high-rate flow pumps (High Gas Volume Fraction Pumps – HGVF) to enable ‘zero’ flaring well test / clean-up activity on new wells.
- Use of the light workover rigs instead of the 3000HP heavy rigs to complete intervention and workovers on two wells. This ensured lower emissions and lower environmental footprint to achieve our objectives.
- Our in-field Eco Centre or waste management centre enables recovery of base oil from contaminated drilling fluids and drilled cuttings for re-use in well intervention activities.
- Initiated GHG emissions reduction plan and piloted other improvement initiatives. Implemented use of solar powered mobile offices used for H2S monitoring on some of our rigless sites (replacing the traditional diesel generator sets for these units). Implemented a number of initiatives too on our rig sites, including installation of Halo LED lights in the derrick of our rigs that contribute to improving energy efficiency.
The KPO Well Operations team continuously works on developing internal procedures, workflows, technology improvements and innovations aimed at improving efficiency and well operations’ performance. The following was achieved throughout 2023:
- Development and implementation of a “Business Improvement Plan” to drive efficiency of well delivery with strong focus on digitalisation and performance improvement.
- Step-up in well integrity monitoring and well integrity status – preventing and reducing the possibility of well integrity related environmental emissions.
- Utilisation of new technologies like local expander (ability to repair the well locally, thereby avoiding the need to re-drill) – driving efficient production.
KPO is the Operator of the Karachaganak oil and gas condensate field (KOGCF) which is located in North-West Kazakhstan and covers an area of over 280 km2. Karachaganak is a unique field with complex operating conditions, not in the least due to extreme continental climate. The field is some 1,600 m thick and very complex and unique with its top at a depth of around 3,500 m. The extracted hydrocarbons contain up to 4.5 % of highly toxic and corrosive hydrogen sulphide (H2S), as well as carbon dioxide (CO2) which can be highly corrosive in certain conditions.
According to the latest Reserves Re-Determination Report for the Karachaganak field (accepted by the RoK State Reserves Committee (GKZ) on 17.11.2017), it is estimated that the Karachaganak Field contains some 13.6 billion barrels of liquids and 59.4 trillion cubic feet of gas, of which approximately 15.5 % of liquids and 14,5 % of gas have been recovered as of 2023.
The Company invests heavily into the application of leading-edge technologies to maximize sustainable economic value and minimise environmental impact. The total investment in the development of the Karachaganak oil & gas condensate field since the signing of the FPSA in 1997 to 31.12.2023 has totalled over USD 31.3 bln. As of end 2023, 4,080 people worked in the KPO organisation.